1)
Message boards :
Number crunching :
BOINC on Linux
(Message 90718)
Posted 1625 days ago by drsevrin
Bumping, for what it's worth. I've had multiple GPU's running under SLI and Linux for several years now. (NVIDIA GTX 560's) One card failed, but the other soldiers on. It took a lot of tweaking driver settings for me to get GPU's running BOINC and other Cuda applications, but I finally got it working. I'm still on Ubuntu 12.04, and running NVIDIA driver 304.125.

2)
Message boards :
Problems and Help :
GPU recognized but not being used? (Ubuntu 12.04)
(Message 60424)
Posted 2732 days ago by drsevrin
Thanks for everyone's help. GPU is up and running fine now under Ubuntu 12.04 with Boinc client 7.0.28. I'm very pleased . . .

Another data point: Lubuntu 12.04 is working nicely for me with a dual-GPU setup. The driver is currently 304.64, and that's been updated many times from the repositories. No Gnome desktop here either.

When I first set this up I was still on 10.10. Here's what I did to do the original install of the real nvidia driver at the time:

I can't speak to whether or not this is applicable for a freshly-installed 12.04 system. Updates for me now happen via the usual Update Manager system.

I've always installed BOINC itself by downloading an install script from http://boinc.berkeley.edu/download_all.php, and just running that. This allows you to easily install multiple copies of BOINC itself in non-standard places on the same box that are completely independent.

--Gary

Thanks. I was finally able to get CUDA compiled and working last night on 12.04. The fluid flow example is amazing! I'll try a separate install of BOINC outside the package manager and try it that way; still have yet to get the daemon version to recognize the GPU, but I think that has to do with setting up the PATH variable to include CUDA correctly before the BOINC daemon initializes.

from the log file boinc can not recognize the driver for your video card correctly.

goto https://help.ubuntu.com/community/Cuda

they can explain more completely how to re-install your cuda driver

cuda drivers are having trouble with 12.10.

search this location for more diver info.

good luck:)

Thanks, I'll give that a shot. I ultimately gave up on 12.10 due to major issues with the Nvidia drivers. I'm still puzzled though why the manual client initialization sees the GPU but the daemon initialization does not. Again, thanks.

however client did not start. I'm starting to wonder if this has to do with the linux installation as a daemon, which starts before X11, therefore Nvidia driver has not loaded and cannot be detected? I've seen on the SETI board that sometimes inserting a sleep delay in the init script will slow down the daemon enough that the GPU driver is recognized. Tried it in 12.10 but no luck; however that may have been more of an Nvidia issue. In any event, I'm still not sure how to best proceed, although mucking with the init script or reinstalling as a non-daemon client is what I'm thinking.

if you go to tasks in your account you should see something like this for finished gpu tasks.

PPS (Sieve) v1.38
(ati13ati)

I am running ati, yours will say cuda.

Thanks - I'm posting from a non-boinc machine at the moment; when I return home in a few hours I'll post again with the log file from the machine in question.

10)
Message boards :
Problems and Help :
GPU recognized but not being used? (Ubuntu 12.04)
(Message 60319)
Posted 2734 days ago by drsevrin
I've just gotten a newly built machine up and running and I can't seem to confirm the GPU is being used. After giving up on Ubuntu 12.10 due to Nvidia driver problems I dropped down to 12.04 (32 bit) and now the "sudo boinc" initialization output confirms the client recognizes my Nvidia Geforce GTX 560 GPU. However, the GPU appears idle (temps are 31 deg on optimized power management setting, 42 deg on maximum performance.).

I use Grid Republic and have set my projects to 100% Primegrid, enabled the GPU and disabled the CPU in PrimeGrid prefs. CPU is still being utilized based on system monitor output. I am starting to get suspicious of the Grid Republic client. Also, even though the "sudo boinc" output acknowledges a usable GPU, the boinc computer info page will not confirm a GPU is present. And, no CUDA work units appear to be downloading.